package com.imooc.controller;

import com.imooc.config.ProjectUrlConfig;
import com.imooc.enums.ResultEnum;
import com.imooc.exception.SellException;
import lombok.extern.slf4j.Slf4j;
import me.chanjar.weixin.common.api.WxConsts;
import me.chanjar.weixin.common.exception.WxErrorException;
import me.chanjar.weixin.mp.api.WxMpService;
import me.chanjar.weixin.mp.bean.result.WxMpOAuth2AccessToken;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;

import java.net.URLEncoder;

@Controller
@RequestMapping("/webchat")
@Slf4j
public class WechatController {

    @Autowired
    private WxMpService wxMpService;

    @Autowired
    private WxMpService wxOpenService;

    @Autowired
    private ProjectUrlConfig projectUrlConfig;

    @GetMapping("/authorize")
    public String  authorize(@RequestParam("returnUrl")String returnUrl){

        //1.配置

        //2.调用方法
        String url=projectUrlConfig.getWechatMpAuthorize()+"/sell/webchat/userInfo";
        String redirectUrl=wxMpService.oauth2buildAuthorizationUrl(url,WxConsts.OAUTH2_SCOPE_USER_INFO,URLEncoder.encode(returnUrl));
        return "redirect:"+redirectUrl;
    }

    @GetMapping("/userInfo")
    public String userInfo(@RequestParam("code")String code,@RequestParam("state")String returnUrl){
        WxMpOAuth2AccessToken wxMpOAuth2AccessToken=new WxMpOAuth2AccessToken();
        try{
            wxMpOAuth2AccessToken=wxMpService.oauth2getAccessToken(code);
        }catch (WxErrorException e){
            log.error("【微信网页授权】{}",e);
           throw new SellException(ResultEnum.WECHAT_MP_ERROR.getCode(),e.getError().getErrorMsg());
        }
        String openId=wxMpOAuth2AccessToken.getOpenId();

        return "redirect:"+returnUrl+"?openid="+openId;


    }

    @GetMapping("/qrAuthorize")
    public String qrAuthorize(@RequestParam("returnUrl")String returnUrl){
        String url=projectUrlConfig.getWechatOpenAuthorize()+"/sell/webchat/qrUserInfo";
        String redirectUrl=wxOpenService.buildQrConnectUrl(url,WxConsts.QRCONNECT_SCOPE_SNSAPI_LOGIN,URLEncoder.encode(returnUrl));
        return "redirect:"+redirectUrl;
    }

    @GetMapping("/qrUserInfo")
    public String qrUserInfo(@RequestParam("code")String code,@RequestParam("state")String returnUrl){
        WxMpOAuth2AccessToken wxMpOAuth2AccessToken=new WxMpOAuth2AccessToken();
        try{
            wxMpOAuth2AccessToken=wxOpenService.oauth2getAccessToken(code);
        }catch (WxErrorException e){
            log.error("【微信网页授权登录】{}",e);
            throw new SellException(ResultEnum.WECHAT_MP_ERROR.getCode(),e.getError().getErrorMsg());
        }
        String openId=wxMpOAuth2AccessToken.getOpenId();

        return "redirect:"+returnUrl+"?openid="+openId;
    }
}
